184 G12 OEM Board & Sensor Reference Manual
The time displayed in the TTT message depends upon the selected constellation. If SYS=MIX, the
time depends upon the setting of the TSC parameter. If SYS=GPS, the time is GPS. IF SYS=GLO, the
time is UTC + 3 hours.
Table 4.109 defines the TTT response message structure.
Example
Enter the following command to enable TTT event marker on port A
Set: $PASHS,NME,TTT,A,ON
Typical response:
$PASHR,TTT,6,20:41:02.0000000*OD
Table 4.110 describes the example TTT response message.
UTM: Universal Transverse Mercator (UTM) - Ext. Mem. G12 Only
$PASHS,NME,UTM, x,s,[f]
Enable/disable UTM message on port x, where x is the output port, and y is ON or
OFF, and f is the optional message output rate ranging from 0.05 to 999 seconds
depending on the measurement update rate option installed.
The G12 does not output this message unless it computes a position.
If the command is set without a period, the G12 uses the period set by the
$PASHS,NME,PER command If the $PASHS,NME,PER command is issued after
this message period has been set, the period resets to the PER setting.
Table 4.109. $PASHR,TTT Message Format
Field Description Range
d1 Day of GPS week (Sunday = 1; Monday
= 2; Tuesday = 3; etc.)
1 - 7
m2 Time at which the pulse was input
(hhmmss.ss)
000000.00 to
235959.90
*hh Checksum 2-character hex
Table 4.110. Example TTT Response Message
Item Description
$PASHR,TTT Header
6 Day of week (Friday)
20:41:02.000000 0 Time
OD Message checksum in hexadecimal
G12RevD.book Page 184 Tuesday, April 2, 2002 4:33 PM
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